Michael Phelps' return to the pool
Look through pictures of U.S. Olympic swimmer Michael Phelps' return to the pool in 2014 and 2015.
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Arena Pro Swim Series at Mesa - Day 4
MESA, AZ - APRIL 18: Michael Phelps' fiancee Nicole Johnson (center) smiles during day four of the Arena Pro Swim Series at the Skyline Aquatic Center on April 18, 2015 in Mesa, Arizona. (Photo by Chris Coduto/Getty Images) ORG XMIT: 537309131